SysODataCollectionAttribute - Pass in List of objects

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Posted on by PhillyNJ

The below code is throwing a compile error:

"Abnormal termination with unhandled exception. Exception key: a76d7897-189b-4bde-be62-7d5383a61c4f. System.NotSupportedException: The type <Class> is not support."

[SysODataActionAttribute("UpdateEndUserLinesV2", false),
        SysODataCollectionAttribute("_lines", Types::Class, classStr(WSTG_EndUserLine))]
public static str updateEndUserLinesV2(str _lotId, List _lines)
{
   // do something
        return "Test";
}

How do I tell the compiler I am expecting a list of "WSTG_EndUserLine" ?

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huijij 19,811 on at

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Hi PhillyNJ,

The SysODataCollectionAttribute class enables OData to expose strongly typed collections from X++. This class takes in three parameters:

The name of the parameter that is a list (Use return for the return value of the method.)

The X++ type of the members of this list

The public name of the OData resource that is contained in the collection

learn.microsoft.com/.../odata

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Martin Dráb 239,035 Most Valuable Professional on at

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Hi Judy, you've marked your reply as a suggested answer, but it's not clear how your snippet of the documentation answers PhillyNJ's question. Please explain it.

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GirishS 27,843 Moderator on at

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Hi PhillyNJ,

I don't think you can make use of type class for SysODataCollectionAttribute.

So please go through the below link which may be useful for you.

https://nuxulu.com/2021-05-25-all-about-odata-actions-in-dynamics-365-finance-and-operations/

Thanks,

Girish S.

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Martin Dráb 239,035 Most Valuable Professional on at

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The error seems to say that SysODataCollectionAttribute doesn't support classes. I've seen it used only with primitive data types or with data entities.

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Martin Dráb 239,035 Most Valuable Professional on at

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GirishS, you're saying that the solution for using a collection of WSTG_EndUserLine objects is declaring the type as Types::Record instead of Types::Class, but is it true? I don't think that it'll allow PhillyNJ to use WSTG_EndUserLine class. You can use public names of data entities (not class names) with Types::Record.

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huijij 19,811 on at

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Hi PhillyNJ,

According to your error message, it's clear that the wrong parameter was passed, the link I shared has instructions on how to use the method, the second parameter should not be of type class.

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PhillyNJ 81 on at

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goshoom - I think you are correct. I will need to find a better solution... Thanks for the help

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